Cartridge coating machine



May 9, 1944.

J. E. TURNOCK. ETAL. 2,348,233

CARTRIDGE COATING MACHINE Original Filed March 2'7, 1940 4 Sheets-Sheet 1 dpseph E. Turnn 12k Gerard 11 Noble y J. E. TURNOCK-ETAL 2,348,233

CARTRIDGE COATING MACHINE Original Filed March 27, 1940 .4 Sheets-Sheet 2 I ran Joseph E Tuz nl:lck E'ernrd IlNuhla J. 5. TURNOCK EI'AL 2,348,233

CARTRIDGE CQATING MACHINE Original Filed March 2'7, 1940 May 9, 1944.

4 Sheets-:Sheet 3 :Iueeplw. E.Turn|:\ck

Gerard D Noble y 1944- J. E. TURNOCK ETAL 2,348,233

CARTRIDGE COATING MACHINE Original Filed March 27, 1940 4 Sheets-Sheet 4 dnlseph E- Turnm Eh I Patented May 9, 1944 CARTRIDGE COATING MACHINE Joseph E. Turnock,- Riverton, N. J., and Gerard D. Noble, Philadelphia, Pa.

Original application March 27, 1940, Serial No. 326,208. Divided and this application November 13, 1941, Serial No. 418,992

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 O. G. 757) 6 Claims.

The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to r us of any royalty thereon.

This application is a division of our copending application, Serial No. 326,208 filed March 2'7, 1940. I

This invention relates to a machine for acting on cartridge cases, and more particularly to a machine for applying a coating of waterproof material to an ordnance device and for wiping the excess material therefrom.

The purpose of the invention is to provide a simple, effective device for intermittently de. positing a uniform waterproof coating 'to the ends of cartridge cases.

The specific nature of the invention as well as other objects and advantages thereof will clearly appear from a description of a preferred embodiment as shown in the accompanying drawings inwhich: I r

Fig. 1 is a view in front elevation of the machine for acting on cartridge cases, Y I

Fig. 2 is a View in left side elevation showing the coating and wiping devices,

Fig. 3 is a plan view partly in section varnishing and wiping mechanism,

Fig. 4 is a sectional view on the line 44 of Fig.3, V

Fig. 5 is a sectional view on the line 5-5 of Fig. 3, r

Fig. 6 is a sectional view on the line 6-6 of Fig. 5, and

Fig. '7 is a sectional view on the line 'l---! of Fig.4.

Referring to Fig. 1, the machine comprises a work portion referred to generally as A for performing operations on the base of a cartridge case such as venting, inserting a primer, seating and crimping, and detecting for abnormal conditions. The part described generally as B includes the varnishing or waterproofing mechanism and a device for wiping the excess fluid material from the cartridge bases.

Cartridge cases are fed from a hopper Ill through a passage I I to a guide channel I2 in a bed plate l2, see Figs. 1 and 2. Channel I2 extends the length of the bed plate and i provided with conventional means (not shown) for indexing a plurality of spaced, inverted cartridge cases to the left. Tools l3 are mounted on a pair of reciprocating crossheads l3 and perform Work operations on the bases of the cartridge cases as they are intermittently advanced toward the varnishing and wiping mechanism B.

of the The bed plate [2 extends at one side of the machine to carry the varnishing mechanism B which comprises a pair of reservoirs I4 and I5 (Figs. 2 and 3), the reservoir I4 adapted to supply varnish or a waterproofing material through a valved pipe I6 to a lower tank 11 (Fig. 4) below the plate I3 and the reservoir l5 adapted to supply varnish through a valved pipe [8 and trough l9 (Fig. 3) to an upper tank 20 above the plate 12. An applicator 2| (Fig. 4) disposed in the lower tank I! is carried by a bent rod 22 which extends out of the tank and is fixed to a vertically slidable bar 23. The applicator 2| is adapted to enter the mouth of the cartridge case 24 and coat the inside wall evenly with varnish.

The upper tank 20 is disposed at one side of the cartridge 24 which at this stage in its travel is raised in the guide channel and is supported by spaced rails 2525 (Figs. 4 and 5) which engage the rim of the cartridge case. An applicator 25 associated with the upper tank is carried by a vertically movable slide 21 which in turn is carried by a horizontally movable sl' e 28 mounted in guide 29. A roller 30 on the vertical slide is arranged to engage a transversely disposed arcuate cam 3| fixed to a bracket 32 audit is held against the cam by means of a compression spring 33 (Fig. 7) whose lower end is connected to a spring seat 34 carried by the horizontal slide 28.

The slide 28 is formed with a tubular bearing '35 which slidably receives an end of a rod 36 which is pivotally connected to one arm of a bell crank lever 31. A helical spring 38 embracing the rod is confined between the bearing 35 and the outer pivoted end of the rod. The end of the rod which projects through the bearing carries a collar 39 for engaging the bearing and it also carries a set screw 40 for engaging the lower arm 4| of a bell crank lever. The upper arm 42 of this lever is adapted to strike the vertical slide 21 to move the applicator towards the cartridge case 24 where it deposits a drop of varnish on the primer. The slide 28 is moved to the right in Fig. 4 through the intermediation of the spring 38 and it is stopped in a predetermined position by a set screw 43 while the rod continues its movement to strike the arm 4|. Movement of the slide to the left is accomplished by engagement of the collar 39 with the bearing 35.

The actuating mechanism for the elements carrying the applicators comprises a connecting rod 44 (Figs. 2 and 4) which is reciprocated by the main drive shaft (not shown) and is connected to the lower arm of bell crank lever 31 pivoted on bracket 32. The connecting rod is also connected by means of a link 46 to a lever 41 which is pivotally mounted on the lower part of bracket 32 and has a link 48 connected to the vertically slidable bar 23.

Referring to Fig. 2 there is shown an endless b It 49 trained around spaced lower pulleys U50 d a single upper pulley 5| which is slidably aiounted on a vertical rod 52 and normally eleated by a spring 53. A ratchet wheel 54 associated with one of the pulleys is intermittently driven by a pawl 55 carried by lever 56. The lever 56 is actuated by link 51 from the connecting rod 44.

An arm 58 pivotally mounted on the bracket 32 carries a roller 59 which engages the inner reach of the belt above the cartridge case.

Alink 60 connects the arm with lever 41 and serves to intermittently depress the arm so that the roller will move the belt into contact with the base of the cartridge case in order to wipe excess varnish from the primer.

Referring to Fig. 5, when the cartridge case reaches the end of its travel by the action of the indexing mechanism shown generally at 6|, a member 52 on the end of the mechanism pushes the case onto a drying rack 63.

The operation has been described in connection with the description of the component elements.

We claim:

1. In amachine, a bed plate, means for moving cartridge cases with their base end up step by step across the bed plate, a tank at one side of 'the path of travel of the cartridge cases and adapted to contain a fluent waterproofing matehorizontal slide'is at one end of its stroke.

2..In a machine, a bed plate, means for moving cartridge cases with their base end up step by step across the bed plate, a tank at one side of the-path of travel of the cartridge cases and adapted to contain a fluent waterproofing material, a horizontal slide carried by the bed plate transversely of the path of travel of the cartridge cases, a vertical slide carried by the horizontal slide, an applicator carried by the vertical slide, a spring normally elevating the vertical slide, an arcuate cam engageable by the vertical slide under action of its spring, and means for reciprocating the horizontal slide.

3. In a machine, a bed plate, means for moving cartridge cases with their base end up step by step across the bed plate, a tank at one side of the path of travel of the cartridge cases and adapted to contain a fluent waterproofing material, a carriage disposed transversely of the path of travel of the cartridge cases, an applicator carried by the carriage, means for reciprocating the carriage, and means for vertically moving the applicator during reciprocation of the carriage.

4. In a machine, a bed plate, means for moving cartridge cases step by step across the bed plate, means underneath the bed plate for applying a waterproofing material to the lower part of a cartridge case, an operating lever for said means, means above the bed plate for applying waterproofing material to the upper part of a cartridge case, an operating lever for said last named means, and a connecting rod for actuatin both of said levers.

5. In a machine of the character described, a bed plate, means for moving the cartridge cases along said bed plate with their base end up and with a step-by-step movement, a tank at one side of the path of travel of the cartridge cases for containing a fluent waterproofing material,

a vertically and horizontally movable applicator, means vertically reciprocating the applicator with respect to the tank, and means timed with relation to the points of stoppage of the cartridge cases to move the applicator horizonally to deposit fluid from the tank upon the cartridge case.

6. In a machine of the character described, a bed plate, means for moving the cartridge cases with their open ends down and with a step-bystep movement across said plate, rails on the 'bed plate and arranged to enter the annular groove in the base of the cartridge cases to guide and support them in their travel across the plate, means for guiding and supporting the lower ends of the cases, a tank below the path of travel of said cases for containing a fluent waterproofing material, an applicator in said tank, and means for vertically reciprocating the applicator into and out of the open end of the cartridge cases.

JOSEPH E. TURNocK. GERARD D. NOBLE. 

